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Member Run Boards >> Environment >> Antarctica- NO warming 70 years
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Message started by lee on May 9th, 2023 at 2:58pm

Title: Antarctica- NO warming 70 years
Post by lee on May 9th, 2023 at 2:58pm

Quote:
The Antarctic continent has not warmed in the last seven decades, despite a monotonic increase in the atmospheric concentration of greenhouse gases. In this paper, we investigate whether the high orography of the Antarctic ice sheet (AIS) has helped delay warming over the continent. To that end, we contrast the Antarctic climate response to CO2-doubling with present-day orography to the response with a flattened AIS. To corroborate our findings, we perform this exercise with two different climate models. We find that, with a flattened AIS, CO2-doubling induces more latent heat transport toward the Antarctic continent, greater moisture convergence over the continent and, as a result, more surface-amplified condensational heating. Greater moisture convergence over the continent is made possible by flattening of moist isentropic surfaces, which decreases humidity gradients along the trajectories on which extratropical poleward moisture transport predominantly occurs, thereby enabling more moisture to reach the pole. Furthermore, the polar meridional cell disappears when the AIS is flattened, permitting greater CO2-forced warm temperature advection toward the Antarctic continent. Our results suggest that the high elevation of the present AIS plays a significant role in decreasing the susceptibility of the Antarctic continent to CO2-forced warming.


https://www.nature.com/articles/s41612-020-00143-w

Title: Re: Antarctica- NO warming 70 years
Post by Bobby. on May 9th, 2023 at 3:03pm
Wow,

The Antarctic continent has not warmed in the last seven decades

some people on this forum will have trouble with that statement.   :-[

Title: Re: Antarctica- NO warming 70 years
Post by Xavier on May 9th, 2023 at 4:20pm
Well considering my mate has been working in the Antarctic off seasons for a number of years now - where the warm has busted records - I would say that it's all a lie.
Antarctica has recorded record warm temperatures.

Title: Re: Antarctica- NO warming 70 years
Post by lee on May 9th, 2023 at 5:49pm

Jasin wrote on May 9th, 2023 at 4:20pm:
where the warm has busted records



Daily or continuously? ::)

And you don't believe stuff from Nature? You are a climate heretic. ;D ;D ;D ;D

Title: Re: Antarctica- NO warming 70 years
Post by Xavier on May 9th, 2023 at 6:06pm
;D ;D naturally

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